05310 Type 190 HSS Black Oxide Jobber Length 135Â degree Split Point Drill Bit (12 pack) 5/16" Helps Eliminate Deposits

Helps Eliminate Deposits

Equipped standard with a 20 micron filter element

But why settle for a knock-off when you can have the original - from Boston Gear

It is manufactured using the powdered metal process with the purest metal powders

05310 Type 190 HSS Black Oxide Jobber Length 135Â degree Split Point Drill Bit (12 pack) 5/16" Helps Eliminate DepositsHeavy duty construction for drilling in tougher materials Manufactured from premium high speed steel 135 split point is self centering for reduce thrust and easier penetration Manufactured to NAS 907 B aerospace specification Click Here for product catalog Black oxide surface finish increases wear resistance and adds lubricity to improve chip flow. Proudly Manufactured in the U. S. A